Hydrogen-induced metallization on the ZnO(0001) surface

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dc.creatorWendell Simões e Silva
dc.creatorChristian Stiehler
dc.creatorEdmar Avellar Soares
dc.creatorEduardo Matzenbacher Bittar
dc.creatorFernando Loureiro Stavale Junior
dc.creatorJúlio Criginski Cezar
dc.creatorHelmut Kuhlenbeck
dc.creatorHans-Joachim Freund
dc.creatorEduardo Enrique Cisternas Jara
dc.date.accessioned2023-08-29T16:49:14Z
dc.date.accessioned2025-09-09T01:14:25Z
dc.date.available2023-08-29T16:49:14Z
dc.date.issued2018
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipFAPERJ - Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.98.155416
dc.identifier.issn2469-9969
dc.identifier.urihttps://hdl.handle.net/1843/58324
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofPhysical Review B
dc.rightsAcesso Restrito
dc.subjectHidrogênio
dc.subjectÓxidos
dc.subject.otherHydrogen
dc.subject.otherOxides
dc.titleHydrogen-induced metallization on the ZnO(0001) surface
dc.typeArtigo de periódico
local.citation.epage155416-8
local.citation.issue15
local.citation.spage155416-1
local.citation.volume98
local.description.resumoThe formation of hydrogen overlayers on the Zn-terminated ZnO(0001) surface has been reexamined by angle-resolved photoemission spectroscopy (ARPES). While low-energy electron diffraction patterns display the same (1 × 1) symmetry for different surface preparations, the electronic structure feature close to the Fermi level shows the formation of electron pockets, compatible with hydrogen-induced metallic states. Using ARPES and density functional theory (DFT) calculations, we show that hydrogen adspecies can also lead to metallization of this zinc-oxide surface in a similar manner as observed previously on ZnO(10¯10) and O-terminated ZnO(000¯1). Importantly, our DFT calculations indicate that these electron pockets are formed by sp hybridized states and therefore the angular distribution of the emitted photoelectron is significantly suppressed at the normal emission.
local.identifier.orcidhttps://orcid.org/0000-0002-6174-9037
local.identifier.orcidhttps://orcid.org/0000-0003-3356-3312
local.identifier.orcidhttps://orcid.org/0000-0002-2762-1312
local.identifier.orcidhttps://orcid.org/0000-0001-6771-0048
local.identifier.orcidhttps://orcid.org/0000-0002-7904-6874
local.identifier.orcidhttps://orcid.org/0000-0001-6384-8883
local.identifier.orcidhttps://orcid.org/0000-0002-1705-6196
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://journals.aps.org/prb/abstract/10.1103/PhysRevB.98.155416

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